חזרה לתוכניות
Enterprise SystemsAdvanced8-10 weeks
Multi-Tenant Billing & Subscription Engine
Ship any pricing model — usage-based, tiered, per-seat, or hybrid — without rewriting your billing logic every time you iterate.
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Enterprise Systems
קטגוריה
Advanced
מורכבות
8-10 weeks
לוח זמנים
SaaS
תעשייה
The Challenge
SaaS companies frequently start with a simple per-seat or flat-rate pricing model, only to discover that growth demands far more flexibility — usage-based pricing for API products, tiered plans with overage charges, enterprise contracts with custom rate cards, and hybrid models that blend several approaches. Most in-house billing systems were never designed for this complexity, so every pricing change becomes a multi-sprint engineering project. Meanwhile, finance teams struggle with revenue recognition rules that differ by contract type, dunning workflows that leak revenue through failed payment retries, and multi-currency invoicing that requires manual adjustments. The gap between what sales wants to sell and what billing can support becomes a direct constraint on business model innovation.
Our Solution
MicrocosmWorks can build a multi-tenant billing and subscription engine that decouples pricing logic from application code, enabling product and finance teams to define, test, and launch new pricing models without engineering involvement. The engine supports usage-based metering with real-time event ingestion, tiered and volume pricing with configurable thresholds, per-seat licensing with mid-cycle proration, and hybrid plans that combine any of the above. A robust invoicing pipeline handles multi-currency conversion, tax calculation via integrations with Avalara or TaxJar, and branded PDF generation. Dunning management automates failed payment retries with configurable escalation sequences. Revenue recognition modules align with ASC 606 requirements, and a self-service billing portal gives customers full transparency into their usage, invoices, and payment methods.
System Architecture
The engine is architected as a set of event-driven microservices behind a unified billing
API. A metering pipeline ingests raw usage events at high throughput, aggregates them according to plan-specific rules, and feeds the rating engine that computes charges. The subscription lifecycle manager handles plan changes, trials, upgrades, downgrades, and cancellations with precise proration logic.
Key Components
- Usage Metering Pipeline: High-throughput event ingestion endpoint that accepts raw usage events, deduplicates them, and aggregates quantities by customer, feature, and
billing period using configurable aggregation functions (sum, max, unique count).
- Rating & Pricing Engine: Flexible charge calculator that evaluates tiered, volume, staircase, per-unit, and flat-fee pricing rules against metered usage and subscription
metadata to produce line-item charges.
- Subscription Lifecycle Manager: State machine governing trial start, activation, upgrade, downgrade, pause, cancellation, and renewal transitions with mid-cycle
proration and contract term enforcement.
- Invoice Generation Service: Automated invoice assembly combining recurring charges, usage charges, credits, discounts, and taxes into multi-currency invoices with PDF
rendering and email delivery.
- Dunning & Payment Recovery: Configurable retry schedules for failed payments with escalation actions — reminder emails, grace periods, service degradation, and eventual
suspension — optimized by ML-predicted recovery probability.
- Self-Service Billing Portal: Customer-facing dashboard showing real-time usage, invoice history, payment methods, plan details, and upgrade/downgrade options with
instant proration previews.
Key Integrations
| Platform | Integration Type | Purpose |
|---|---|---|
| Stripe / Braintree | Payment API | Card processing, ACH, wire transfers, and payment method vault |
| Avalara / TaxJar | REST API | Automated sales tax and VAT calculation by jurisdiction |
| QuickBooks / Xero / NetSuite | REST API | General ledger sync, accounts receivable, revenue recognition |
| Salesforce / HubSpot | Webhook + REST API | Deal-to-subscription handoff and renewal pipeline updates |
| Segment / Mixpanel | Event Stream | Usage event ingestion from product analytics pipelines |
Technology Stack
| Layer | Technologies |
|---|---|
| Backend | Node.js (NestJS), TypeScript, Apache Kafka, Bull MQ |
| AI / ML | XGBoost (payment recovery optimization), pandas (revenue analytics) |
| Frontend | Next.js, Radix UI, Tailwind CSS |
| Database | PostgreSQL, ClickHouse (usage analytics), Redis |
| Infrastructure | AWS (ECS, MSK, RDS, S3), Terraform, Stripe Connect, Datadog |
Implementation Phases
| Phase | Duration | Deliverables |
|---|---|---|
| Pricing Model Design & Data Modeling | 1 week | Pricing rule schema, subscription state machine, metering event spec |
| Metering & Rating Engine | 3 weeks | Event ingestion pipeline, aggregation service, pricing rule evaluator |
| Subscription Lifecycle & Invoicing | 2 weeks | State machine, proration logic, invoice generation, PDF templates |
| Dunning, Tax & Payment Integration | 1 week | Payment gateway connectors, tax API integration, retry scheduler |
| Self-Service Portal & Go-Live | 1-3 weeks | Customer billing portal, admin console, end-to-end testing, launch |
Expected Impact
| Metric | Improvement | Detail |
|---|---|---|
| Time to Launch New Pricing Model | -80% | Declarative pricing configuration replaces multi-sprint engineering for every pricing change. |
| Involuntary Churn (Failed Payments) | -45% | Intelligent dunning with ML-optimized retry timing recovers revenue that static logic misses. |
| Revenue Leakage | -60% | Accurate metering, proration, and automated reconciliation close gaps between usage and billing. |
| Finance Close Cycle | -3 days | Automated revenue recognition and deferred revenue schedules eliminate manual spreadsheet work. |
| Customer Billing Inquiries | -50% | Self-service portal with real-time usage visibility and transparent invoices cuts support tickets. |
Related Services
- SaaS Development — Multi-tenant architecture, subscription lifecycle, and self-service portal engineering
- ERP / Enterprise Solutions — General ledger integration, revenue recognition, and financial reporting
טכנולוגיות ונושאים
SaaS DevelopmentERP / Enterprise
שאלות נפוצות
MicrocosmWorks builds a flexible rating engine that supports flat-rate, per-seat, usage-based (metered), tiered, volume, staircase, and hybrid pricing models that can be combined within a single subscription plan. With development rates between $25-$45/hr, the billing engine is architected with configurable rating rules that let your product team experiment with pricing strategies without requiring engineering changes for each new plan.
Yes, the MicrocosmWorks billing engine supports per-tenant pricing overrides, custom billing cycles (monthly, quarterly, annual), net payment terms (Net 15/30/60/90), custom invoice templates, and tenant-specific discount structures. Enterprise tenants can have negotiated contract pricing while self-serve tenants use standard published pricing, all managed within the same billing infrastructure.
MicrocosmWorks implements precise proration calculations using configurable rounding rules and credit/debit journaling that correctly handles mid-cycle plan changes, add-on activations, seat count adjustments, and cancellations. The system generates transparent line items on the next invoice showing exactly how prorated charges and credits were calculated, reducing billing-related support tickets by 70-80%.
The MicrocosmWorks blueprint integrates with Stripe, Braintree, Adyen, and PayPal for card payments, plus ACH/SEPA for bank transfers, and supports multi-currency billing in 135+ currencies with automatic exchange rate management. The system handles local payment methods like iDEAL, Boleto, and UPI based on the customer's geography to maximize payment conversion rates.
MicrocosmWorks builds automated revenue recognition workflows that allocate transaction prices across performance obligations, recognize revenue as obligations are satisfied, and handle contract modifications per ASC 606 guidelines. The system generates deferred revenue schedules, waterfall reports, and month-end journal entries that integrate directly with your GL, eliminating manual revenue recognition spreadsheets.
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